Examples with AtomicReference java.util.concurrent.atomic.AtomicReference used on opensource projects

Example 11 with AtomicReference

use of java.util.concurrent.atomic.AtomicReference in project flink by apache.

the class StreamingRuntimeContextTest method testListStateInstantiation.

@Test
public void testListStateInstantiation() throws Exception {
    final ExecutionConfig config = new ExecutionConfig();
    config.registerKryoType(Path.class);
    final AtomicReference<Object> descriptorCapture = new AtomicReference<>();
    StreamingRuntimeContext context = new StreamingRuntimeContext(createDescriptorCapturingMockOp(descriptorCapture, config), createMockEnvironment(), Collections.<String, Accumulator<?, ?>>emptyMap());
    ListStateDescriptor<TaskInfo> descr = new ListStateDescriptor<>("name", TaskInfo.class);
    context.getListState(descr);
    ListStateDescriptor<?> descrIntercepted = (ListStateDescriptor<?>) descriptorCapture.get();
    TypeSerializer<?> serializer = descrIntercepted.getSerializer();
    // check that the Path class is really registered, i.e., the execution config was applied
    assertTrue(serializer instanceof ListSerializer);
    TypeSerializer<?> elementSerializer = descrIntercepted.getElementSerializer();
    assertTrue(elementSerializer instanceof KryoSerializer);
    assertTrue(((KryoSerializer<?>) elementSerializer).getKryo().getRegistration(Path.class).getId() > 0);
}

Example 12 with AtomicReference

use of java.util.concurrent.atomic.AtomicReference in project flink by apache.

the class RightOuterJoinTaskTest method testCancelRightOuterJoinTaskWhileBuilding.

@Test
public void testCancelRightOuterJoinTaskWhileBuilding() throws Exception {
    setOutput(new DiscardingOutputCollector<Tuple2<Integer, Integer>>());
    addDriverComparator(this.comparator1);
    addDriverComparator(this.comparator2);
    getTaskConfig().setDriverPairComparator(new RuntimePairComparatorFactory());
    getTaskConfig().setDriverStrategy(DriverStrategy.RIGHT_HYBRIDHASH_BUILD_FIRST);
    getTaskConfig().setRelativeMemoryDriver(this.hash_frac);
    final AbstractOuterJoinDriver<Tuple2<Integer, Integer>, Tuple2<Integer, Integer>, Tuple2<Integer, Integer>> testTask = getOuterJoinDriver();
    addInput(new DelayingIterator<>(new InfiniteIntTupleIterator(), 100), this.serializer);
    addInput(new UniformIntTupleGenerator(100, 100, true), this.serializer);
    final AtomicReference<Throwable> error = new AtomicReference<>();
    final Thread taskRunner = new Thread("Task runner for testCancelOuterJoinTaskWhileSort1()") {

        @Override
        public void run() {
            try {
                testDriver(testTask, MockJoinStub.class);
            } catch (Throwable t) {
                error.set(t);
            }
        }
    };
    taskRunner.start();
    Thread.sleep(1000);
    cancel();
    taskRunner.join(60000);
    assertFalse("Task thread did not finish within 60 seconds", taskRunner.isAlive());
    final Throwable taskError = error.get();
    if (taskError != null) {
        fail("Error in task while canceling:\n" + Throwables.getStackTraceAsString(taskError));
    }
}

Example 13 with AtomicReference

use of java.util.concurrent.atomic.AtomicReference in project flink by apache.

the class LeftOuterJoinTaskTest method testCancelLeftOuterJoinTaskWhileProbing.

@Test
public void testCancelLeftOuterJoinTaskWhileProbing() throws Exception {
    setOutput(new DiscardingOutputCollector<Tuple2<Integer, Integer>>());
    addDriverComparator(this.comparator1);
    addDriverComparator(this.comparator2);
    getTaskConfig().setDriverPairComparator(new RuntimePairComparatorFactory());
    getTaskConfig().setDriverStrategy(DriverStrategy.LEFT_HYBRIDHASH_BUILD_SECOND);
    getTaskConfig().setRelativeMemoryDriver(this.hash_frac);
    final AbstractOuterJoinDriver<Tuple2<Integer, Integer>, Tuple2<Integer, Integer>, Tuple2<Integer, Integer>> testTask = getOuterJoinDriver();
    addInput(new DelayingIterator<>(new InfiniteIntTupleIterator(), 100), this.serializer);
    addInput(new UniformIntTupleGenerator(1, 1, true), this.serializer);
    final AtomicReference<Throwable> error = new AtomicReference<>();
    final Thread taskRunner = new Thread("Task runner for testCancelOuterJoinTaskWhileSort1()") {

        @Override
        public void run() {
            try {
                testDriver(testTask, MockJoinStub.class);
            } catch (Throwable t) {
                error.set(t);
            }
        }
    };
    taskRunner.start();
    Thread.sleep(1000);
    cancel();
    taskRunner.join(60000);
    assertFalse("Task thread did not finish within 60 seconds", taskRunner.isAlive());
    final Throwable taskError = error.get();
    if (taskError != null) {
        fail("Error in task while canceling:\n" + Throwables.getStackTraceAsString(taskError));
    }
}

Example 14 with AtomicReference

use of java.util.concurrent.atomic.AtomicReference in project flink by apache.

the class KvStateClientTest method testServerClosesChannel.

/**
	 * Tests that a server channel close, closes the connection and removes it
	 * from the established connections.
	 */
@Test
public void testServerClosesChannel() throws Exception {
    Deadline deadline = TEST_TIMEOUT.fromNow();
    AtomicKvStateRequestStats stats = new AtomicKvStateRequestStats();
    KvStateClient client = null;
    Channel serverChannel = null;
    try {
        client = new KvStateClient(1, stats);
        final AtomicBoolean received = new AtomicBoolean();
        final AtomicReference<Channel> channel = new AtomicReference<>();
        serverChannel = createServerChannel(new ChannelInboundHandlerAdapter() {

            @Override
            public void channelActive(ChannelHandlerContext ctx) throws Exception {
                channel.set(ctx.channel());
            }

            @Override
            public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
                received.set(true);
            }
        });
        KvStateServerAddress serverAddress = getKvStateServerAddress(serverChannel);
        // Requests
        Future<byte[]> future = client.getKvState(serverAddress, new KvStateID(), new byte[0]);
        while (!received.get() && deadline.hasTimeLeft()) {
            Thread.sleep(50);
        }
        assertTrue("Receive timed out", received.get());
        assertEquals(1, stats.getNumConnections());
        channel.get().close().await(deadline.timeLeft().toMillis(), TimeUnit.MILLISECONDS);
        try {
            Await.result(future, deadline.timeLeft());
            fail("Did not throw expected server failure");
        } catch (ClosedChannelException ignored) {
        // Expected
        }
        assertEquals(0, stats.getNumConnections());
        // Counts can take some time to propagate
        while (deadline.hasTimeLeft() && (stats.getNumSuccessful() != 0 || stats.getNumFailed() != 1)) {
            Thread.sleep(100);
        }
        assertEquals(1, stats.getNumRequests());
        assertEquals(0, stats.getNumSuccessful());
        assertEquals(1, stats.getNumFailed());
    } finally {
        if (client != null) {
            client.shutDown();
        }
        if (serverChannel != null) {
            serverChannel.close();
        }
        assertEquals("Channel leak", 0, stats.getNumConnections());
    }
}

Example 15 with AtomicReference

use of java.util.concurrent.atomic.AtomicReference in project hadoop by apache.

the class TestRPC method testRPCInterrupted.

@Test(timeout = 30000)
public void testRPCInterrupted() throws Exception {
    Server server;
    RPC.Builder builder = newServerBuilder(conf).setNumHandlers(5).setVerbose(true).setSecretManager(null);
    server = setupTestServer(builder);
    int numConcurrentRPC = 200;
    final CyclicBarrier barrier = new CyclicBarrier(numConcurrentRPC);
    final CountDownLatch latch = new CountDownLatch(numConcurrentRPC);
    final AtomicBoolean leaderRunning = new AtomicBoolean(true);
    final AtomicReference<Throwable> error = new AtomicReference<>();
    Thread leaderThread = null;
    try {
        for (int i = 0; i < numConcurrentRPC; i++) {
            final int num = i;
            final TestRpcService proxy = getClient(addr, conf);
            Thread rpcThread = new Thread(new Runnable() {

                @Override
                public void run() {
                    try {
                        barrier.await();
                        while (num == 0 || leaderRunning.get()) {
                            proxy.slowPing(null, newSlowPingRequest(false));
                        }
                        proxy.slowPing(null, newSlowPingRequest(false));
                    } catch (Exception e) {
                        if (num == 0) {
                            leaderRunning.set(false);
                        } else {
                            error.set(e);
                        }
                        LOG.error("thread " + num, e);
                    } finally {
                        latch.countDown();
                    }
                }
            });
            rpcThread.start();
            if (leaderThread == null) {
                leaderThread = rpcThread;
            }
        }
        // let threads get past the barrier
        Thread.sleep(1000);
        // stop a single thread
        while (leaderRunning.get()) {
            leaderThread.interrupt();
        }
        latch.await();
        // should not cause any other thread to get an error
        assertTrue("rpc got exception " + error.get(), error.get() == null);
    } finally {
        server.stop();
    }
}